Sugar-cane-boiling furnace.



-- .G. "A. ALLEN.

SUGAR CANE-BOILING FURNACE.

I. 4 APPLICATION FILED MAY 17. 1912. 1,054,2 4, Patented Feb.'25, I913.

2 SHEETS-SHEET}.

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G. A. ALLEN.

SUGAR CANE BOILING FURNACE. APPLICATION FILED MAY 17. 1012.

2 SHEETS-SHEET 2.

Q6 6 J 4 m: J5 3/ a I f Z Z? I I 1 :26 Z3 eluvwwboz C1 norm up GARFIELD A. ALLEN, OF VERTBEES, KENTUCKY.,

Specification of Letters Patent.

' Patented Feb. 25,1913.

Application filed May 17., 1912. Serial No. 697,958.

To all whom it may concern:

7 Be it known that I, GARFIELD A. ALLEN,

.a citizen of the United States, residing at Vertrees, in the county of Hardin, State of Kentucky, have invented certain. new and useful Improvements in Sugar-Cane-Boilg Furnaces;- and'I do hereby declare the ollowing to be a full, clear, and exact descriptionof the inventiornsuch as will enable others skilled in the art to which it appertains to make and use the same.

. This invention relates to furnaces for boiling sugar cane or sorghum and has for an ob ect to providea furnace of this character having novel adjustable legs for, adapting the furnace toset properly on uneven ound. I

A furtherbbject of the inventionis to provide a furnace having a centrally located Win-d so that the sured at all times.

jack for-elevating thefurnace to permit of.

the same being rotated uponshifting of the proper draft will'be as- A still further object of the invention is to provide'a furnace having a casing provi ed with a space for the reception of dirt '"other material to take the place of fire chc ck and like extensive linings, there being doors located at the lowest points in the casing for the removal of the dirt when it is desired to move the furnace.

A' final object of the invention is to provide a furnace having a novel grate and removable ash pan, the grate being revolubly mounted to facilitate dumping and be ing further capable of being easily and qulckly removed from the furnace when desired. I I t I With. the above objects in view the lnventi rrconsists of certain novel details of construetionand combination of parts hereinafter fully described and claimed, it being understood that various modifications'may be made in the minor details or construction Within the scope of the appended clam.

, the accompanying drawings forming part of this specificationrFigure 1 is a side elevation of the, furnace. vFig. 2 is a plan view of the furnace. Fig. 3 is a longitudinal sectional view through the furnace. Fig. 4. is across sectional vlew' taken on the hue l-7 Pig. 1. 1* 1g. 0 1s a cross sectional view taken on the line 8-8 Fig. 1.

Referring now to the drawings in which like characters of reference designate similar parts, the furnace is shown to comprise an outer casing 10, and an inner casing 11, there being a space between both casings.

for the reception of dirt 12 or similar incxpensive'material. The major portion of the furnace slopes downwardly toward the front of the furnace, and doors 13 are 10- cated at the lowest points in the sides of the outcrcasmg'to facilitate the removal of the dirt when the furnace is to be moved. The

doors are hinged in position-as shown at 14 and normally held' closedby buttons 15; The furnace is supported at the front and' rear ends by extensible'legs each comprising '70 a stationary member 16 which is fixed by riveting or otherwise to the casing and equipped on the outer face with guide straps 17 through which an adjustable member 18 is slidably fitted. A groove 19 is formed in the adjustable member at the top to reccive a guide pin 20 carried by the stationary member. The statlonary member'is pro-. vided with a serlesof notches 21 on one edge,

and the adjustable member is provided with a substantially U-shaped locking pawl 22 which is pivotally secured to the member by astrap 23, one leg of the pawl being adaptedto engagein any one of the notches 21 and lock the adjustable member in any adjusted position, while the other leg of the pawl constitutes a handle for rotating the pawl into operative or released ,position.

Both members'of each leg are provided with oppositely bent feet 24, the foot of the adjustable member being adapted to rest. upon the ground while the fobt of the stationary member constitutes a handle for manually raising or loweringjthe' furnace, y

it being understood that the foot of the ad 'justable member is rigidlyheld upon the ground by stepping upon fig or otherwise during this manipulatiomo' the furnace. By proper adjustment of the furnace legs the furnace may be maintained level upon 10' uneven ground. I V

The stationary members of all the legs are connected by inclined braces 25 below the 'furnace,-and are further connected by horizontal braces :26 at the. upper edge of l the furnace, these braces being inturn con:

nected by vertical braces Q-Ywhich together with the horizontal braces are riveted or otherwise permanently fixed to the outer casing of the furnace. The horizontal braceseittend forwardly beyond the front of the furnace and terminate in handles 28 by means of which the front end of the furna'ce maybe lifted bodily and rotated upon the jack hereinafter described to bring the front of the furnace to face the breeze upon shifting of "the wind and thus insure a proper draft thro'ughthe furnace at all times. e 7

Both the inner and outer casings of the furnace have av common bottom 29, and in the front end or fire box end of the furnace the bottom is cut away to receive a horizontally disposeclgrate 3Q. Dis'posed below the cut away portion of the bottom are parallel channel iron guide bars 31, these bars being connected at their rear ends bya cross bar 32 and. at their front ends by a cross bar 33. A tubular bearing 34 is centrally disposed on the cross bar 32. to receive a centrally disposed gudgeon carried on "the rear end of the grate, and the cross bar 33 is provided in the top face with a groove 36 to receive a 5nd,? on carried on the front end of the grate. .tn-e may be rotatedbodily on these gudgeons' in either direction for dumping, or the front end of the grate may be lifted. 'bodily and then pulled forwardly" to 'remove the grate bodily from. the furnace when desired.

The webs of the guide bars 31 are formed with slots 38 in which are'slidably fitted locking slides 39 which engage with their inner ends the bottom face of the grate and a normally hold'the grate in operative position and furthermore the outer ends of these slides bear within guide grooves 40 formed in the top edges of abutment bars 41 carried below. the furnace outside of the guide bars,

the extreme outer ends of the slides being bent downwardly to provide handles 4:2 for movingthe slides 'to operative and released position. I I -A door 43 is hingedly mounted on the front wall of the outer casing to permit of access to the interior of the furnace, the

tionary member of each'leg is a stop finger 50 against which the handle of the locking .the plate to any desired extent.

against collapse.

For promoting the proper draft, astack 51 is mounted on a supporting plate 52 car- 'ried by the top edges of both inner and outer casings and .the rear end of he .fur-

nace, this stack being equipped with a damper and being furthermore braced by he stationary member and in this n'ianner the legs are. held guy wires 54 the lower ends of which are engaged in eye bolts 55 carried by angleiron. brackets 56 secured to the vouter easing,v

tightening of these guy wiresbeing efiected by manipulation of the nuts. 5? of the eye bolts.

In sugar cane boiling furnaces it is essential for the proper working of-the furnace that the front of the furnace always fagce the breeze. To facilitate rotation of the furnace into the breeze upon shifting of the wind, I provide. a cross brace 58 which bridges the inclined braces of the legs near the forward end of the furnace and is con .nace oil the jack as a pivot to face the breeze after the feed screw of the jack has been manually raised in the usual manner to elevate the legs of the furnace from 'tlIC' ground.

- It'will be noted that the furnace is deep at the fire boi end and shallow at the smoke stack end, and that the socket member 59. is

disposed intermediate these ends so that the .deep end of the furnace counterbalances the smoke stack with a resultant even balancing.

of the furnace on the jack as a fulcrum, whereby the; furnace may be easily and quickly rotated when necessary.

For regulating the upward intake of through the grate to the tire box a plate 64 is slidably fitted on the lower flanges of the channel iron guide bars, this plate being provided with a handle 65 for-withdrawing furthermore performs the function-of an ash The plate too pan since it is situatedbelow. the grate and may be withdrawn from time to time to facilitate the ashes being removed when necessary.

What is claimed, is a A sugar cane boiling furnace including a tire box deep at one end and shallow at the opposite end, with the intermediate portion gradually merging from said deep end into lac pawl carried by the adjustable member said shallow end, a smoke stackrising from said furnace hevin g a feed screw; a socket. on the bottom of said furnace receiving said feed screw and s0 positienedthat the weight of the -deep end of said furnace counterbalances the weight of the smoke stack with a resultant even balance of said furnace on said feed screw when the latter is elevated,

whereby said furnace may be evenly rotated on said jack as a pivot, and extensible leg." on each side of said fire box.

In testimony whereof, I aflix my signature, in presence of two witnesses.

GARFIELD A. ALLEN.

Witnesses v RAVE THOMAS,

THOMAS DARNELL. 

